Fix and re-enable disabled 'InterfaceHash' tests

- Force loading of module dependencies from interface
- Set a unique module cache path for these tests

Author: artemcm

test/InterfaceHash/edited_function_body.swift

@@ -1,7 +1,8 @@
 // RUN: %empty-directory(%t)
+// RUN: %empty-directory(%t/ModuleCache)
 // RUN: %{python} %utils/split_file.py -o %t %s
-// RUN: %target-swift-frontend -dump-interface-hash -primary-file %t/a.swift 2> %t/a.hash
-// RUN: %target-swift-frontend -dump-interface-hash -primary-file %t/b.swift 2> %t/b.hash
+// RUN: %target-swift-frontend -dump-interface-hash -primary-file %t/a.swift -module-cache-path %t/ModuleCache 2> %t/a.hash
+// RUN: %target-swift-frontend -dump-interface-hash -primary-file %t/b.swift -module-cache-path %t/ModuleCache 2> %t/b.hash
 // RUN: cmp %t/a.hash %t/b.hash
 
 // BEGIN a.swift

test/InterfaceHash/edited_method_body.swift

@@ -1,18 +1,14 @@
-// UNSUPPORTED: OS=windows-msvc
-
-// rdar://124402245
-// UNSUPPORTED: OS=linux-gnu
-
 // When adding a private protocol method, the interface hash should stay the same
 // The per-type fingerprint should change
 
 // RUN: %empty-directory(%t)
+// RUN: %empty-directory(%t/ModuleCache)
 // RUN: %{python} %utils/split_file.py -o %t %s
 // RUN: cp %t/{a,x}.swift
-// RUN: %target-swift-frontend -typecheck -primary-file %t/x.swift -emit-reference-dependencies-path %t/x.swiftdeps -module-name main
+// RUN: env SWIFT_FORCE_MODULE_LOADING=prefer-interface %target-swift-frontend -typecheck -primary-file %t/x.swift -emit-reference-dependencies-path %t/x.swiftdeps -module-name main -module-cache-path %t/ModuleCache -Rmodule-loading
 // RUN: %{python} %S/../Inputs/process_fine_grained_swiftdeps_with_fingerprints.py %swift-dependency-tool %t/x.swiftdeps > %t/a-processed.swiftdeps
 // RUN: cp %t/{b,x}.swift
-// RUN: %target-swift-frontend -typecheck -primary-file %t/x.swift -emit-reference-dependencies-path %t/x.swiftdeps -module-name main
+// RUN: env SWIFT_FORCE_MODULE_LOADING=prefer-interface %target-swift-frontend -typecheck -primary-file %t/x.swift -emit-reference-dependencies-path %t/x.swiftdeps -module-name main -module-cache-path %t/ModuleCache -Rmodule-loading
 // RUN: %{python} %S/../Inputs/process_fine_grained_swiftdeps_with_fingerprints.py %swift-dependency-tool %t/x.swiftdeps > %t/b-processed.swiftdeps
 
 // RUN: diff %t/a-processed.swiftdeps %t/b-processed.swiftdeps

test/InterfaceHash/edited_property_getter.swift

@@ -1,21 +1,17 @@
-// UNSUPPORTED: OS=windows-msvc
-
-// rdar://124402245
-// UNSUPPORTED: OS=linux-gnu
-
 // When adding a private protocol method, the interface hash should stay the same
 // The per-type fingerprint should change
 
 // RUN: %empty-directory(%t)
+// RUN: %empty-directory(%t/ModuleCache)
 // RUN: %{python} %utils/split_file.py -o %t %s
 // RUN: cp %t/{a,x}.swift
-// RUN: %target-swift-frontend -typecheck -primary-file %t/x.swift -emit-reference-dependencies-path %t/x.swiftdeps -module-name main
+// RUN: env SWIFT_FORCE_MODULE_LOADING=prefer-interface %target-swift-frontend -typecheck -primary-file %t/x.swift -emit-reference-dependencies-path %t/x.swiftdeps -module-name main -module-cache-path %t/ModuleCache -Rmodule-loading
 // RUN: %{python} %S/../Inputs/process_fine_grained_swiftdeps_with_fingerprints.py %swift-dependency-tool %t/x.swiftdeps > %t/a-processed.swiftdeps
 // RUN: cp %t/{b,x}.swift
-// RUN: %target-swift-frontend -typecheck -primary-file %t/x.swift -emit-reference-dependencies-path %t/x.swiftdeps -module-name main
+// RUN: env SWIFT_FORCE_MODULE_LOADING=prefer-interface %target-swift-frontend -typecheck -primary-file %t/x.swift -emit-reference-dependencies-path %t/x.swiftdeps -module-name main -module-cache-path %t/ModuleCache -Rmodule-loading
 // RUN: %{python} %S/../Inputs/process_fine_grained_swiftdeps_with_fingerprints.py %swift-dependency-tool %t/x.swiftdeps > %t/b-processed.swiftdeps
 
-// RUN: cmp %t/a-processed.swiftdeps %t/b-processed.swiftdeps
+// RUN: diff %t/a-processed.swiftdeps %t/b-processed.swiftdeps
 
 // BEGIN a.swift
 class C {